How to Install XXKH3 on Samsung Galaxy S2 (SII) i9100

Want to try the Official Gingerbread ROM of Samsung? then try this Firmware update from Samsung. This ROM is fully stable and you don’t have to worry about any bugs like when you are installing some custom ROMs.

Go to download mode: press and hold these keys together:Volume Down + Home + Power. You’ll see a ‘Warning!‘ screen.. press Volume Up to continue.

On your computer double-click the Odin v1.85.exe to run the program.

Connect your phone to the computer using your USB Data Cable.

The Odin program will recognize your phone and you will see that the ID : COM section will turn yellow, which will mean that all the drivers have been successfully installed.Now, in Odin, select these files at respective tabs: